Minerals - naturally occurring, inorganic, solids that have a crystal structure and a definite chemical compositions, Naturally occurring - an object that is found naturally on the Earth, Inorganic - not formed from living things or the remains of living things, Definite chemical composition - Made of an exact formula of elements or compounds. recipe that cannot be changed without changing the mineral, Structure - the elements of a mineral line up in a pattern that repeat over and over again, Organic - made of the remains of living things,

Rocks and Minerals Interactive Game

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？